Home / 112,573.58-155,350.28-61,587.78

Finding the Fourth Proportional to 112,573.58, 155,350.28 and 61,587.78

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Solution

The fourth proportional to 112,573.58, 155,350.28 and 61,587.78 is: 84,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,573.58 : 155,350.28 = 61,587.78 : x
  2. Step 2: Convert to fraction form
    112,573.58/155,350.28 = 61,587.78/x
  3. Step 3: Cross multiply
    112,573.58x = 155,350.28 × 61,587.78
  4. Step 4: Simplify right side
    112,573.58x = 9,567,678,867.58
  5. Step 5: Solve for x
    x = 9,567,678,867.58/112,573.58
  6. Step 6: Final answer
    x = 84,990.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.